..i dunno if any one read earlier what i sed but i asked my chem2 prof for a permission slip saying i fully completed chem2 for teh audit course, i told him why i was doing it, he did not object
A particularly important distinction here is that professor does not = registrar. What your chem prof is ok with may not necessarily reflect the rules of the administration. You should definitely run this plan by the registrar's office. My undergrad had rules similar to those described by humidbeing and so its not unheard of.
Additionally, you will certainly need to submit the transcript. A simple review of the AMCAS instructions yields (in addition to those items already posted):
One official transcript is required from each U.S., U.S. Territorial, or
Canadian post-secondary institution at which you have attempted
course work, regardless of whether credit was earned. This includes
but is not limited to:
College-level courses attempted while in high school, even if
they did not count toward a degree at any college.
Colleges at which you originally attempted a course, even if
transfer credit was subsequently accepted by another school.
Colleges where you registered but did not earn any credit (e.g.,
incompletes, withdrawals, failures, audits, etc.).
Courses that did not count toward a degree, regardless of
whether credit was earned or transferred.
Extension programs through which you attempted courses, if a
separate transcript is provided by the Extension Division.
Correspondence and home study programs.
Military education.
American schools overseas.
U.S., U.S. Territorial, and Canadian medical schools.